:root {
            --primary-color: #4a6fa5; 
            --secondary-color: #ff6b8b;
            --accent-color: #ffd166;
            --dark-color: #2d3748;
            --light-color: #f7f9fc;
            --text-color: #333;
            --text-light: #666;
            --border-radius: 12px;
            --shadow: 0 5px 15px rgba(0,0,0,0.08);
            --transition: all 0.3s ease;
            --max-width: 1200px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--text-color);
            background-color: #fff;
            overflow-x: hidden;
        }
        a {
            color: var(--primary-color);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary-color);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--border-radius);
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background-color: white;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary-color);
            display: flex;
            align-items: center;
        }
        .logo i {
            color: var(--secondary-color);
            margin-right: 10px;
        }
        .nav-desktop {
            display: flex;
            gap: 30px;
        }
        .nav-desktop a {
            font-weight: 600;
            font-size: 1.05rem;
            position: relative;
            padding: 5px 0;
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background-color: var(--secondary-color);
            transition: width 0.3s ease;
        }
        .nav-desktop a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: var(--dark-color);
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background-color: white;
            padding: 20px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            z-index: 999;
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            padding: 15px 0;
            border-bottom: 1px solid #eee;
            font-weight: 600;
        }
        .nav-mobile a:last-child {
            border-bottom: none;
        }
        .breadcrumb {
            background-color: var(--light-color);
            padding: 12px 20px;
            font-size: 0.9rem;
            border-bottom: 1px solid #eaeaea;
        }
        .breadcrumb a {
            color: var(--text-light);
        }
        .breadcrumb a:hover {
            color: var(--primary-color);
        }
        .breadcrumb span {
            margin: 0 8px;
            color: #aaa;
        }
        .hero {
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            padding: 60px 20px;
            text-align: center;
            border-radius: 0 0 var(--border-radius) var(--border-radius);
            margin-bottom: 40px;
        }
        .hero h1 {
            font-size: 2.8rem;
            margin-bottom: 20px;
            color: var(--dark-color);
            line-height: 1.2;
        }
        .hero p {
            font-size: 1.3rem;
            color: var(--text-light);
            max-width: 800px;
            margin: 0 auto 30px;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 350px;
            gap: 40px;
            padding: 20px 0 50px;
        }
        .article-content {
            background: white;
            padding: 30px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .article-content h2 {
            color: var(--primary-color);
            margin-top: 40px;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 3px solid var(--accent-color);
            font-size: 1.8rem;
        }
        .article-content h3 {
            color: var(--dark-color);
            margin-top: 30px;
            margin-bottom: 15px;
            font-size: 1.5rem;
        }
        .article-content p {
            margin-bottom: 20px;
            text-align: justify;
        }
        .article-content strong {
            color: var(--secondary-color);
            font-weight: 700;
        }
        .article-content em {
            background-color: #fffacd;
            font-style: italic;
            padding: 0 3px;
        }
        .highlight {
            background-color: var(--light-color);
            border-left: 5px solid var(--primary-color);
            padding: 25px;
            margin: 30px 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .feature-img {
            margin: 40px 0;
            text-align: center;
        }
        .feature-img figcaption {
            font-size: 0.9rem;
            color: var(--text-light);
            margin-top: 10px;
            font-style: italic;
        }
        .interactive-buttons {
            display: flex;
            gap: 15px;
            margin: 30px 0;
            flex-wrap: wrap;
        }
        .btn {
            padding: 12px 25px;
            border-radius: 50px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: none;
            cursor: pointer;
            transition: var(--transition);
        }
        .btn-primary {
            background-color: var(--primary-color);
            color: white;
        }
        .btn-primary:hover {
            background-color: #3a5a8a;
            transform: translateY(-3px);
        }
        .btn-secondary {
            background-color: var(--secondary-color);
            color: white;
        }
        .btn-secondary:hover {
            background-color: #ff4a6d;
            transform: translateY(-3px);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .sidebar-widget {
            background: white;
            padding: 25px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            color: var(--primary-color);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #eee;
            font-size: 1.4rem;
        }
        .search-form {
            display: flex;
        }
        .search-form input {
            flex-grow: 1;
            padding: 12px 15px;
            border: 2px solid #ddd;
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            font-size: 1rem;
            outline: none;
        }
        .search-form button {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            cursor: pointer;
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .search-form button:hover {
            background-color: #3a5a8a;
        }
        .rating-widget form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .stars {
            display: flex;
            gap: 5px;
            direction: rtl;
        }
        .stars input {
            display: none;
        }
        .stars label {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .stars input:checked ~ label,
        .stars label:hover,
        .stars label:hover ~ label {
            color: var(--accent-color);
        }
        .rating-widget textarea,
        .comment-form textarea {
            width: 100%;
            padding: 15px;
            border: 2px solid #ddd;
            border-radius: var(--border-radius);
            font-family: inherit;
            font-size: 1rem;
            resize: vertical;
            min-height: 120px;
        }
        .rating-widget button,
        .comment-form button {
            background-color: var(--secondary-color);
            color: white;
            border: none;
            padding: 12px 20px;
            border-radius: var(--border-radius);
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-widget button:hover,
        .comment-form button:hover {
            background-color: #ff4a6d;
        }
        .related-links {
            list-style: none;
        }
        .related-links li {
            margin-bottom: 12px;
            padding-bottom: 12px;
            border-bottom: 1px dashed #eee;
        }
        .related-links a {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .related-links i {
            color: var(--secondary-color);
        }
        .footer-links-section {
            background-color: var(--light-color);
            padding: 40px 20px;
            margin-top: 40px;
        }
        .footer-links-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
            max-width: var(--max-width);
            margin: 0 auto;
        }
        .web-link {
            background: white;
            padding: 20px;
            border-radius: var(--border-radius);
            box-shadow: 0 3px 10px rgba(0,0,0,0.05);
            transition: var(--transition);
        }
        .web-link:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
        }
        .web-link a {
            color: var(--dark-color);
            font-weight: 600;
            display: block;
        }
        .web-link a:hover {
            color: var(--primary-color);
        }
        .site-footer {
            background-color: var(--dark-color);
            color: #bbb;
            padding: 40px 20px 20px;
            text-align: center;
        }
        .footer-container {
            max-width: var(--max-width);
            margin: 0 auto;
        }
        .copyright {
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid #444;
            font-size: 0.9rem;
            color: #888;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
            .hero h1 {
                font-size: 2.3rem;
            }
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .hero p {
                font-size: 1.1rem;
            }
            .article-content {
                padding: 25px 20px;
            }
            .interactive-buttons {
                justify-content: center;
            }
        }